The 1990 Belgian Grand Prix was a Formula One race held at Spa-Francorchamps on August 26, 1990. It was the eleventh round of the 1990 Formula One season. The race was the 48th Belgian Grand Prix. It was the 36th to be held at Spa-Francorchamps and the seventh since the circuit was extensively redeveloped in 1979. The race was held over 43 laps of the seven kilometre circuit for a race distance of 301 kilometres.

Off-track, Nigel Mansell dropped a huge hint that he would not retire from F1 after all. He stated that if he was given a car for 1991 with number 1 status, reliability, a quick engine and worthy of a championship he would consider racing but (as he stated that it seemed unlikely to him) he was still adamant he would retire. He was repeatedly linked with Williams.